Regenerative oven



J. SCHAEFER REGENERATIVE OVEN Filed Dec. 3l, 1930 Jan. 16, 1934.

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Patented Jan. 16, 1934 UNETED STATES PATENT QFFICE and in Germany 2 Claims.

My invention relates to: lling bodies for the regenerative chambers of regenerative coke ovens and similar ovens. These chambers have hitherto been lled with refractory bricks form- 5 ing a chequerwork structure. In some cases, for instance where an individualregenerator compartment is allotted to each heating ilue or to a number of heating lues, difculties are encountered in the erection and removal of the chequerwork due to the presence of the partitions separating the individual regenerator compartments, because these partitions are difficult to erect in the narrow regenerator chambers and have to be removed and erected anew with every replacement of the chequerwork or other repair of the regenerators. Furthermore, the expansion due to heat causes cracks in these thin partitions invariably resulting in leakages. My invention has for its object to overcome these drawbacks.

To this end my invention provides as filling bodies for the regenerator chambers refractory cases which in their turn are filled with filling material, the cases being mounted in rows in the regenerator chambers.

Furthermore, because of the fact that the walls of these cases simultaneously may form the above-mentioned partitions of the individual regenerator compartments, any separate erection of such partitions may be dispensed with. As a consequence, the cases can be very conveniently built in and removed. I further arrange to mount the cases with lateral and vertical clearance in the regenerator compartments so that they are capable of expanding independently of the oven brickwork and even if they consist ol several parts they are absolutely tight so that any leakage is prevented.

In order that my invention may be more readily understood, a preferred embodiment of the same is illustrated by way of example in the accompanying drawing in which Figure 1 is a fragmentary vertical longitudinal section through a regenerator chamber iilled with my new lling bodies,

Figure 2 is a corresponding fragmentary horizontal section, while Figure 3 is a vertical transverse section through the regenerator of Figure 1.

Referring to the drawing, a denotes the regenerator chambers of a regenerative coke oven which chambers are lled each with one or more rows of refractory cases g which in their turn contain lling material lc of any desired suitable type. The cases g have sufficient lateral February 10, 1930 clearance relatively to the regenerator walls w that they are capable of expanding independently of these walls.

In those oven designs where one or more heating flues e are allotted to one regenerator compartment, the

cases g have a length corresponding to the number of heating lues belonging to them, and

the regenerator compartments formed by the cases may be fed in the usual manner alternatively with airor air and gas on the one hand and with waste heat on the other hand. To establish the connection with the heating flues e of the oven the cases may be provided with connecting sockets g1, as

shown in Figure 3.

The width of the cases y may Vcorrespond to that of the regenerator chamber or, as is likewise shown in Figure 3, according to the manner to a portion thereof, the individual regenerators are to be allotted to the heating flues. Furthermore, the cases g may be formed each by one integral body or may be subdivided vertically, as shown, so that each case consists of aY pile of superposed boxes which each contain filling bodies, the boxes in ing one another by tongu known manner engage and groove joints.

chamber, said refractory cases being in spaced relation to the regenerator walls permitting independent expansion of the refractory cases, a

plurality of superimposed refractory cases and ll each of said boxes.

boxes mounted in said ing bodies formed in 2. A regenerative coke oven according to claim l wherein the walls of the cases form partitions for the regenerator cham bers. JOSEF SCHAEFER. 

